body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0; } 
    body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; } 
    h1, h2, h3, h4, h5, h6{ font-size:100%; } 
    address, cite, dfn, em, var { font-style:normal; } 
    code, kbd, pre, samp { font-family:microsoft yahei,couriernew, courier, monospace; } 
    small{ font-size:12px; } 
    ul, ol { list-style:none; } 
    a { text-decoration:none; } 
    a:hover { text-decoration:none; } 
    sup { vertical-align:text-top; } 
    sub{ vertical-align:text-bottom; } 
    legend { color:#000; } 
    fieldset, img { border:0; } 
    button, input, select, textarea { font-size:100%; } 
    table { border-collapse:collapse; border-spacing:0; }
body .row{
    margin: 0;
}
body .clear{
    clear: both;
    content: '.';
}
body .padding_none{
    padding:0;
}
body .padding_left{
    padding-left: 0;
}
body .padding_right{
    padding-right: 0;
}